(3JMdjd Gdfeh GdYeQGfi heYWjGJ GdHjFI deOjfI YQHjI (B((3fehPL eOjfI GdRbGRjb(B) / s - (3YHOGdaJGM GeGe MRjfs ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1987)
Keywords: (3GdScGfs; (3GdLZQGajG GdHTQjIs; (3GdRbGRjbs